<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>二维码生成器</title>
</head>
<body>
<form action="/url" method="post">
url:<input type="text" name="text" value="http://">
<input type="submit" value="生成">
</form>
</body>
</html>